F: People have been using computers to turn their appliances on and off.

下面一组练习是由老师念一个现在时态问句, 比方: Do people use computers for entertainment? 学生就用现在完成进行时态把句子改成 Have people been using computers for entertainment? 这组练习的内容还是说到电脑的用途.作这 组练习一方面可以练习不同时态, 一方面也可以复习刚才学过的词汇.请你在 学生作练习的时候也一起作.

M: Do people use computers for entertainment?

F: Have people been using computers for entertainment?

M: Do people use computers for communication?

F: Have people been using computers for communication?

M: Do people use computers for inventories?

F: Have people been using computers for inventories?

M: Do people use computers for record-keeping?

F: Have people been using computers for record-keeping?

M: Do people use computers to store information?

F: Have people been using computers to store information?

M: Do people use computers to compute complex problems?

F: Have people been using computers to compute complex problems?

M: Do people use computers to send bills to customers?

F: Have people been using computers to send bills to customers?

M: Do people use computers to keep track of expenses?

F: Have people been using computers to keep track of expenses?

M: Do people use computers to turn their appliances on and off?

F: Have people been using computers to turn their appliances on and off?

三.听短文回答问题

今天我们要听一篇关于电脑工业发展迅速的文章.这篇文章里有不少现在完成 进行时态句子, 也有许多我们刚才练习过的词汇.

请你注意听, 等一会儿老师要根据文章问你几个问题.

The home computers industry has been growing rapidly in the United States for the last ten years. Computers used to be large, expensive machines that were very difficult to use.

But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses.

Computers have been designed to store information and compute complex problems.

Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers.

Offices use computers to type letters, record business and communicate with other offices.

People have been using computers in their homes to keep track of expenses and turn appliances on and off.

One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.

刚才那篇文章你都听懂了吗? 如果没有, 不要着急, 等一会儿你还有机会听. 现 在老师先把今天测验的问题念一遍给你听.

第一个问题是:

M: Why have computers been getting more popular?

第二个问题是:

M: How can computers be used?

第三个问题是:

M: Who has been playing computer games?

现在老师再用慢速度把整篇文章念一遍.

The home computers industry has been growing rapidly in the United States for the last ten years. Computers used to be large, expensive machines that were very difficult to use.

But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses.

Computers have been designed to store information and compute complex problems.

Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers.

Offices use computers to type letters, record business and communicate with other offices.

People have been using computers in their homes to keep track of expenses and turn appliances on and off.

One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.

现在请你回答下面三个问题. 每回答一个问题就请你听老师念正确答案.

第一个问题是:

M: Why have computers been getting more popular?

F: It is because they are smaller, cheaper and easier to use.

第二个问题是:

M: How can computers be used?

F: They can be used to do any of the ten things mentioned in the reading.